Find the area of the circle to the nearest tenth. Use 3.14 for π.
1 answer:
Answer:
Step-by-step explanation:
Use the formula for area of a circle
A =
The diameter is 8ft, if there was only a line from the middle to the edge of the circle, then it would be radius
The radius is half the diameter so divide 8 by two and you get the radius
Plug in the radius into the formula
A =
the parenthesis indicate you aren't only squaring the ft, but also the 4
4ft * 4ft = 16
(remember you are also multiplying the unit, in this case feet)
A =
there aren't parenthesis here, meaning you aren't squaring the 16
A = 50.24
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mx = slope
b = y-intercept
We know the y intercept is 0, so nothing will be written there.
To find the slope of this line, we can use the slope formula.
We'll use the points (1, 0) and (3, 1) to find the slope.
Now we can just plug these values into the equation to find the slope.
1 - 0 / 3 - 1
1 / 2
The slope of the line is 1/2, or 0.5.
The slope-intercept form of this line can be written as:
y = 0.5x